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-   991 GT3, GT3RS, GT2RS and 911R (https://rennlist.com/forums/991-gt3-gt3rs-gt2rs-and-911r-229/)
-   -   GMG Racing - GT2RS Exhaust Development (https://rennlist.com/forums/991-gt3-gt3rs-gt2rs-and-911r/1093728-gmg-racing-gt2rs-exhaust-development.html)

gmgracing 08-27-2018 08:29 PM

GMG Racing - GT2RS Exhaust Development (updated 12.17.18)
 
https://cimg6.ibsrv.net/gimg/rennlis...5e4fd29d06.jpg



The GMG Racing team would like to share some of the development we are doing on the 991 GT2RS. While we are thoroughly impressed with Porsche's latest version of the GT2, we are still looking to improve the exhaust's flow characteristics and sound. Initial video has been taken to try and capture the sound in stock form. Continuous updates will be date to the thread so please check back or subscribe to follow the progress!


https://cimg7.ibsrv.net/gimg/rennlis...d6a56508d1.jpg
https://cimg1.ibsrv.net/gimg/rennlis...e55dd8d50e.jpg
https://cimg4.ibsrv.net/gimg/rennlis...825de5e957.jpg
https://cimg5.ibsrv.net/gimg/rennlis...afa7780197.jpg
https://cimg6.ibsrv.net/gimg/rennlis...74c0e6e01c.jpg


***UPDATE 8/29***


https://cimg8.ibsrv.net/gimg/rennlis...e4b7af1d67.jpg
https://cimg5.ibsrv.net/gimg/rennlis...4a43fb601a.jpg
https://cimg1.ibsrv.net/gimg/rennlis...1ac783223c.jpg
https://cimg2.ibsrv.net/gimg/rennlis...7911592baa.jpg
https://cimg7.ibsrv.net/gimg/rennlis...3cd1f65219.jpg
https://cimg4.ibsrv.net/gimg/rennlis...c6a3d7f803.jpg

soulsea 08-27-2018 08:33 PM

Can't wait to see/hear what you guys come up with.

BK77 08-27-2018 09:08 PM

subscribed....:corn:

TRAKCAR 08-27-2018 10:19 PM

Isn’t it as simple as 3 into 1 straight out the back?

James-GMG 08-28-2018 12:55 AM


Originally Posted by TRAKCAR (Post 15247871)
Isn’t it as simple as 3 into 1 straight out the back?

I wish it was that simple.....there are different ways to do it for sure....we are going to test a few options....will keep you posted.

This client wants the full high flow cat upgrade as well as the replacement muffler system.....


https://cimg7.ibsrv.net/gimg/rennlis...c1b3cdd746.jpg

Originally Posted by TRAKCAR (Post 15247871)
Isn’t it as simple as 3 into 1 straight out the back?

I wish it was that simple.....there are different ways to do it for sure....we are going to test a few options....will keep you posted.

This client wants the full high flow cat upgrade as well as the replacement muffler system.....

gmgracing 08-29-2018 06:37 PM

Update! :cheers:

311RS 09-06-2018 11:19 AM

This picture is so sweet. That thing is ready to flow! Looking forward to seeing more from the project, thanks for sharing GMG.

https://cimg0.ibsrv.net/gimg/rennlis...03e51ccae5.jpg

gmgracing 09-06-2018 03:48 PM

Car is on the Dyno today for some logging. Here are some photos of the first exhaust. This unit is made in stainless to take measurements for the Inconel version :thumbup:

https://cimg8.ibsrv.net/gimg/rennlis...8455931b29.jpg
https://cimg9.ibsrv.net/gimg/rennlis...a1c46c3b54.jpg
https://cimg0.ibsrv.net/gimg/rennlis...999586f7aa.jpg
https://cimg2.ibsrv.net/gimg/rennlis...6f321aba75.jpg
https://cimg3.ibsrv.net/gimg/rennlis...696c51297b.jpg
https://cimg6.ibsrv.net/gimg/rennlis...31892f8dfa.jpg

BK77 09-06-2018 04:40 PM

:thumbup: very nice.

James-GMG 09-06-2018 05:48 PM

I just drove this monster on the dyno, WOW!!! 4th gear pulls and it feels like a freight train! Stay tuned for more info......

911_RS 09-07-2018 12:15 AM

nice! Is it a 200 cell cat? Are you also doing a cat delete exhaust? I hope you also make a titanium version since the stock ones are already titanium...

911_RS 09-07-2018 12:16 AM


Originally Posted by James-GMG (Post 15270986)
I just drove this monster on the dyno, WOW!!! 4th gear pulls and it feels like a freight train! Stay tuned for more info......

Dying to see the numbers!!! :-)

Derek RS 09-07-2018 08:50 AM

patiently waiting for sound clips :)

Needsdecaf 09-07-2018 10:13 AM

Is that just cats to a straight pipe? Damn, that's going to have some serious presence. :eek: :rockon:

James-GMG 09-11-2018 09:41 PM

DYNO PLOT BELOW: Excuse us for the lack of proper marketing materials but I thought it was more important to get to the results than a fluffy sales brochure.........these results are impressive!
I love the large gains at low rpm.......when you need it most!
Stay tuned for more info!!

https://cimg1.ibsrv.net/gimg/rennlis...564ba2b953.jpg


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